#!/usr/bin/ruby

# Ruby script to show all 256 xterm colors in the terminal/bash

# Copyright 2011 Gawin Dapper. http://gaw.in
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

256.times do |i|
  # Print color code in a background and foregroud color
  print "\e[48;5;#{i}m\e[38;5;15m #{"%03d" % i} "
  print "\e[48;5;0m\e[38;5;#{i}m #{"%03d" % i}\t"

  # Print newline to seperate the color blocks
  print "\n" if (i + 1) <= 16 ? ((i + 1) % 8 == 0)  : (((i + 1) - 16) % 6 == 0)
  print "\n" if (i + 1) <= 16 ? ((i + 1) % 16 == 0) : (((i + 1) - 16) % 36 == 0)
end

print "\e[033;00m"
